Home / 18,360.85-25,338.12-9,977.35

Finding the Fourth Proportional to 18,360.85, 25,338.12 and 9,977.35

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Solution

The fourth proportional to 18,360.85, 25,338.12 and 9,977.35 is: 13,768.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,360.85 : 25,338.12 = 9,977.35 : x
  2. Step 2: Convert to fraction form
    18,360.85/25,338.12 = 9,977.35/x
  3. Step 3: Cross multiply
    18,360.85x = 25,338.12 × 9,977.35
  4. Step 4: Simplify right side
    18,360.85x = 252,807,115.00
  5. Step 5: Solve for x
    x = 252,807,115.00/18,360.85
  6. Step 6: Final answer
    x = 13,768.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.